Tank and means for discharging contents thereof.



0.670,582. Patented marfz's, |901.

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TNK ANDMEANS FR D-ISGHABGING GONTENTSTHEHEUF.

(Appl-kation filed Feb. 4, 1901.)

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Tm: Nonms Pneus No. 670,582. Patented Mar. 26, I90I.

` C. ERISMAIL TANKND'MEANS FUR DISCHABGING CONTENTS THEREOF.

(Applicationl led Feb. 4, 1901.) m0 MUUBL ZSheets-Sheot 2.

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,y NTTED STATES PATENT OFFICE.

cLEM EEIsMAN, oF `DECATUE, ILLINoIsfAssIeNoR To 1ER-AMK M. PRATT, or SAME PLACE;

TANK AND MEANS FORDISC'HARGING CONTENTS THEREOF.

SPECIFICATION forming part of Letters Patent No. 670,582, dated March 26, 1901.

Application filed February 4, 1901. Serial Non 45.985. (No model.)

T0 all whom it may concern: v p Be it known that. I, CLEM ERIsMAN, of the city of Decatur, county of Macon, and State of Illinois, have invented a certain new and useful Tank and Means for Discharging the Contents Thereof, of which the following is a, specification. 'Y

This i n vention provides means for discharging a somewhat compacted mass of divided material from tanks and. like receptacles, and itis particularly adapted to the removal of meal from which oil has been extracted by the useof solvents. It. is exemplied in the structure hereinafter described, and it is defined in the appended claims.

In the drawings forming part of this specification, Figure l is a central vertical section through a tank embodying my invention, showing the conditions that exist when the operation of discharging the contents of the tank is begun. Fig. 2 is aA crosssection through an empty tank above the discharging mechanism thereof. Fig. 3 is a vertical section through the lower end of the tank, illustrating the conditions that exist when the tankis nearly empty.

The tank l may be of anyproportions desired; but it is preferably cylindrical in crosssection. It has a bottom 2, and abovethe bottom some little distance vis preferably placed a perforated disk or false bottom 3,

which sustains the mass of solid particles and permits the solvent to percolate through and into the space 4, between the disk and the bottom 2. A tube 6 extends from disk 3 downward through the center of the bottom 2, and at the lower end of the tube is preferably placed a valve 19, which is in this instance a gate-valve. Below thevalve a pipe 20 may continue in any direction and to any receptacle desired. A telescoping tube, composed of sections 7, 8, 9, and 10, reaches when extended to near the top of the tank and when lowered is contained in the tube 6. YThe tube 6 is larger thananyof the sections of the telescoping tube, and each of the telescoping sections is smaller than the one next below it, so that when the entire telescope is lowered each section nests in another and all are contained in tube 6. The sections of the telescope are held against separation in any wellknown manner, and at the upper end of section 10 is a bail 11, by means of which the telescopeis elongated or shortened. The bail may be strengthened bya cage-like structure, as shown in the drawings, the frame of such cage being suiciently open to permitfree passageof meal or other material into the tube. A shaft 13 extends downward through the upper end of the tank, and it has on its lower end a head l2, that engages the bail 11. In operation the shaft rotates and moves lengthwise downward, and a gear-wheel, as 14, may be splined on the shaft above the upper end of the tank to impart the rotary motion and permit the lengthwise motion. The shaft is stayed at its lower end by a crossarm l5, which slides up and down on ribs on opposite sides of the tank, as shown in Fig. 2, and a cross-arm 16- is fastened onto the shaft below the' stay-bar l5. hasa plurality of inclined blades 17 on its Vss The cross-arm under surface, and the inclination of the blades is such that when the cross-arm is rotated in the direction indicated by the arrows in the drawings and the blades are lowered into contact with the material in the tank the upper layer of meal will be carried by cen tripetal action toward the mouth of the telescoping tube.

When the tank is used to extract oil from meal, the principal valve 19 is closed, as is also a drain-valve 1S for space 4, and the tank is lled with meal and submitted to the action of a solvent. are opened, and the oil and solvent are drawn off. Then the blades 17 are lowered into contact with the upper surface of the meal, the shaft is rotated and gradually lowered, and as the meal 5 is removed through the central tube the mouth of the tube is correspondingly lowered. After the telescoping sections are all lowered into tube 6 and the meal is all dischargedA from the tank the shaft is raised and the central tube extended preparatory to a repetition of the operation.

The central tube is made up of telescopic sections as a matter of convenience largely or for economy of space, andthe general features of the invention are the same when a single long tube is lowered into another tube of suitable length or into the open air.

The specific means shown and described whereby the meal is forced toward the center Subsequently the valvesv IOD of the tank is merely typical of this element of my invention. My mode of operation demands means for carrying; the upper surface of the meal or other substance toward the central tube, and such means must lower as the meal is removed; but the Construction of the discharging means is immaterial, and I do not restrict myself to any particular meehanism.

I claim- 1. A tank-discharger Comprising a vertical tu be extended through the bottom of the tank and having' longitudinal motion therein, and mechanism at the upper end of the tube to draw the contents of the tank to the mouth 0i the tube as the tube is lowered.

2. A tank-diseharger oom prising a Vertical tube extended through the bottom of the tank and havingF longitudinal motion therein, a rotatable and lougitudinally-movable shaft extended into the upperend ofthe tank, a swivel con neotion between the lower end ofthe Shaft and the upper end of the tube and meehanism driven by the shaft to force the contents of the tank toward the mouth of the tube.

The Combination with a tank, of a tube connected with the lowerend thereof and having a closure, a telescopic conduit adapted to nest in the tube in the bottom of the tank and extensible up into the tank, and meeh anism at. the upper end of the eond uit to draw the con tents of the tank toward the mouth of the Conduit.

In testimony whereof I sign my name in the presence of two subscribing Witnesses.

@LEM ERISMAN.

Witnesses:

F. M. PRATT, NEWTON DAVIS. 

